Across the world, trends in marital quality highlight the significance of identifying relational factors that sustain healthy marriages. The present study investigated the extent to which fondness and admiration determine marital quality among members of Karura Community Chapel in Nairobi City County, Kenya. The study adopted a cross-sectional survey design. The target population comprised 375 married individuals in Karura Community Church. Purposive sampling was employed to select respondents. A total of 172 married individuals responded to the survey. Data was collected using structured questionnaire based on Gottman’s Sound Relationship House. The data was analysed using SPSS Version 29. Both descriptive analysis and inferential statistics were generated. The results revealed a strong, significant positive correlation between fondness and admiration and marital quality (r = .704, p < .01). Hierarchical regression showed that gender, age bracket, and marriage duration jointly explained a small but significant proportion of variance in marital quality, R² = .078, F(3, 164) = 4.60, p <.01, with gender (B = .308, p< .05) and age bracket (B = .236, p< .05) emerging as significant predictors, while marriage duration was not significant (p >.05). However, the inclusion of fondness and admiration substantially improved the model, increasing the explained variance to 51.3% (R² = .513, F(4, 163) = 42.85, p < .01), indicating a strong predictive contribution. It was concluded that fondness and admiration function as core relational assets that sustain marital relationships irrespective of demographic differences. Premarital counselling should cultivate fondness and admiration, teaching couples to express affection and appreciation for one another regularly.